Chủ đề / Chương

Bài học

Hãy tham gia nhóm Học sinh Hoc24OLM
Bạn chưa đăng nhập. Vui lòng đăng nhập để hỏi bài
Thái Võ Hồng

Cho x=\(\frac{3-\sqrt{5}}{2}\). Tính P=\(x^{2018}-3x^{2017}+5x^2-15x+2017\)

Lớp 9 Toán Câu hỏi của OLM

Khách
 
Edogawa Conan
Edogawa Conan
16 tháng 9 2017 lúc 9:22

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Bình luận (0)
LÊ ĐỨC THỊNH
LÊ ĐỨC THỊNH
16 tháng 9 2017 lúc 9:42

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Bình luận (0)
Các câu hỏi tương tự
Trương Trọng Tiến

Cho x = \(\frac{1}{2}\sqrt{\frac{\sqrt{2}-1}{\sqrt{2}+1}}\). Tính giá trị biểu thức:

\(A=\left(4x^5+4x^4-x^3+1\right)^{2018}+\left(\sqrt{4x^5+4x^4-5x^3+3}\right)^3+\left(\frac{1-2\sqrt{x}}{\sqrt{2x^2}+2x}\right)^{2017}\) tại giá trị x đã cho

Xem chi tiết
Lớp 9 Toán Câu hỏi của OLM
Gae Song

Cho \(x=\frac{1}{2}\sqrt{\frac{\sqrt{2}-1}{\sqrt{2}+1}}\).

Tính giá trị phương trình: \(A=\left(4x^5+4x^4-x^3+1\right)^{2018}+\left(\sqrt{4x^5+4x^4-5x^3+3}\right)^3+\left(\frac{1-\sqrt{2}x}{\sqrt{2x^2+2x}}\right)^{2017}\)

tại giá trị của x.

Xem chi tiết
Lớp 9 Toán Câu hỏi của OLM
titanic

Cho \(x=1-\sqrt[3]{2}+\sqrt[3]{4}\)Tính \(B=x^{2019}-3x^{2018}+9x^{2017}-9x^{2016}+2019\)

Xem chi tiết
Lớp 9 Toán Câu hỏi của OLM
Trương Khánh Hoàng

a) Cho a,b,c là các số thực thỏa mãn a+b+c=2018 và \(\frac{1}{a}+\frac{1}{b}+\frac{1}{c}=\frac{1}{2018}\) . Tính giá trị của biểu thức \(A=\frac{1}{a^{2017}}+\frac{1}{b^{2017}}+\frac{1}{c^{2017}}\)

b) Rút gọn biểu thức : \(\frac{\sqrt{\sqrt{5}+2}\sqrt{\sqrt{5}-2}}{\sqrt{\sqrt{5}+1}}-\sqrt{3-2\sqrt{2}}\)

Nhờ các bn giải dùm !!!

Xem chi tiết
Lớp 9 Toán Câu hỏi của OLM
Đức Anh Gamer

Cho \(x^2-x-1=0\).Tính \(Q=\frac{x^6-3x^5+3x^4-x^3+2017}{x^6-x^3-3x^2-3x+2017}\)

Xem chi tiết
Lớp 9 Toán Câu hỏi của OLM
Nguyễn Hà Chi

\(\text{Chứng minh rằng:}2017< \sqrt{\frac{2}{1}}+\sqrt[3]{\frac{3}{2}}+\sqrt[4]{\frac{4}{3}}+...+\sqrt[2018]{\frac{2018}{2017}}< 2018\)

Xem chi tiết
Lớp 9 Toán Câu hỏi của OLM
Le Trang Nhung
Bài 1: Giải hệ phương trình a) hept{begin{cases}left(x+yright)left(x^2+y^2right)15left(x-yright)left(x^2-y^2right)3end{cases}}b) hept{begin{cases}x^2+y^21sqrt[2017]{x}-sqrt[2017]{y}left(sqrt[2018]{y}-sqrt[2018]{x}right)left(x+y+xy+2019right)end{cases}}c) hept{begin{cases}xzx+42y^27xz-3x-14x^2+z^235-y^2end{cases}}Bài 2: Cho a,b,x,y thỏa mãn hệ:ax+by3ax^2+by^25ax^3+by^39ax^4+by^417Tính:Aax^5+by^5Bax^{2017}+by^{2017}
Đọc tiếp
Xem chi tiết
Lớp 9 Toán Câu hỏi của OLM
Cố Tử Thần

\(GPT\)

\(\frac{\sqrt{x-2016}-1}{x-2016}+\frac{\sqrt{y-2017}-1}{y-2017}+\frac{\sqrt{z-2018}-1}{z-2018}=\frac{3}{4}\)

HELP ME

Xem chi tiết
Lớp 9 Toán Câu hỏi của OLM
Trần Hương

1, cho a = \(4+\sqrt{5}\),b=\(4-\sqrt{5}\)

Tính A=\(\left(a^{2018}-8a^{2017}+11a^{2016}\right)+\left(b^{2018}-8b^{2017}+11b^{2016}\right)\)

2, cho \(\sqrt{x^2-6x+36}+\sqrt{x^2-6x+48}=18\)

Tính  A=\(\sqrt{4x^2-24x+256}-2\sqrt{x^2-6x+36}\)

Xem chi tiết
Lớp 9 Toán Câu hỏi của OLM